Please any advice

I miscarried 01/3/13 6 weeks in, I've been trying for 2yrs an I finally stopped trying an got my BFP , I'm 6weeks as of today ! Now I'm just worried it's gonna happen all over again. I don't remember anything from my first pregnancy besides loosing the baby I'm experiencing some really annoying dual aches in my lower abdomen not like period cramps, my nausea comes an goes as well as my sore breast . now I'm accompanied by milky white discharge very light odor no itching or burning. I was just wondering has any other mom experience this an still had a healthy baby an pregnancy